公开(公告)号：US20220224128A1

公开(公告)日：2022-07-14

申请号：US17144807

申请日：2021-01-08

Applicant: GOOGLE LLC

Inventor： James Robert Lim ,  Haoxing Zhang ,  David Wang ,  Dietrich Shing-Quan Ho ,  Yuanyuan Song

IPC: H02J7/00

Abstract: This application is directed to an electronic device powered by one or more rechargeable battery cells. The electronic device includes a first negative temperature coefficient (NTC) thermistor proximate to the battery cells, and an open capacitor coupled in parallel with the NTC thermistor. The open capacitor has an open area and two electrodes that are at least partially exposed via the open area and electrically isolated. The electronic device further includes a control circuit coupled to the NTC thermistor and the open capacitor. The control circuit is configured to detect a voltage drop across the NTC thermistor and the open capacitor if conductive liquid enters the open area of the capacitor and electrically connects the two electrodes that are at least partially exposed via the open area.

公开(公告)号：US12051926B2

公开(公告)日：2024-07-30

申请号：US18047521

申请日：2022-10-18

Applicant: Google LLC

Inventor： James Robert Lim ,  Haoxing Zhang ,  David Wang ,  Dietrich Shing-Quan Ho ,  Yuanyuan Song

IPC: H02J7/00

CPC classification number: H02J7/0031 ,  H02J7/0013

Abstract: This application is directed to an electronic device powered by one or more rechargeable battery cells. The electronic device includes a first negative temperature coefficient (NTC) thermistor proximate to the battery cells, and an open capacitor coupled in parallel with the NTC thermistor. The open capacitor has an open area and two electrodes that are at least partially exposed via the open area and electrically isolated. The electronic device further includes a control circuit coupled to the NTC thermistor and the open capacitor. The control circuit is configured to detect a voltage drop across the NTC thermistor and the open capacitor if conductive liquid enters the open area of the capacitor and electrically connects the two electrodes that are at least partially exposed via the open area.

公开(公告)号：US20230066939A1

公开(公告)日：2023-03-02

申请号：US18047521

申请日：2022-10-18

Applicant: Google LLC

Inventor： James Robert Lim ,  Haoxing Zhang ,  David Wang ,  Dietrich Shing-Quan Ho ,  Yuanyuan Song

IPC: H02J7/00

Abstract: This application is directed to an electronic device powered by one or more rechargeable battery cells. The electronic device includes a first negative temperature coefficient (NTC) thermistor proximate to the battery cells, and an open capacitor coupled in parallel with the NTC thermistor. The open capacitor has an open area and two electrodes that are at least partially exposed via the open area and electrically isolated. The electronic device further includes a control circuit coupled to the NTC thermistor and the open capacitor. The control circuit is configured to detect a voltage drop across the NTC thermistor and the open capacitor if conductive liquid enters the open area of the capacitor and electrically connects the two electrodes that are at least partially exposed via the open area.

公开(公告)号：US11482872B2

公开(公告)日：2022-10-25

申请号：US17144807

申请日：2021-01-08

Applicant: Google LLC

Inventor： James Robert Lim ,  Haoxing Zhang ,  David Wang ,  Dietrich Shing-Quan Ho ,  Yuanyuan Song

IPC: H02J7/00

Abstract: This application is directed to an electronic device powered by one or more rechargeable battery cells. The electronic device includes a first negative temperature coefficient (NTC) thermistor proximate to the battery cells, and an open capacitor coupled in parallel with the NTC thermistor. The open capacitor has an open area and two electrodes that are at least partially exposed via the open area and electrically isolated. The electronic device further includes a control circuit coupled to the NTC thermistor and the open capacitor. The control circuit is configured to detect a voltage drop across the NTC thermistor and the open capacitor if conductive liquid enters the open area of the capacitor and electrically connects the two electrodes that are at least partially exposed via the open area.